Apple doesn't have a chart correlating the color wheel entries with the Pantone
color chart. Although there are third-party products that display (dithered)
Pantone colors on the screen and create color separations for output to a
PostScript typesetter, these programs usually don't offer a formula or
prescribed way to input values to obtain a specific output.
Many of those products can be located by searching on "Pantone" in the buyer's
guides (Menu and Redgate libraries) on AppleLink. The only way we know of to
achieve "Pantone" input values is to conduct a color analysis, entering then
logging values on a match with a desired output. You can find to the color
wheel and related managers, procedures, and so on in the "Inside Macintosh
Cross-Reference."